Motorola 2.1 Manual Do Utilizador

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Chapter 4: Site Selection and Deployment Guidelines  
• 
MOTOMESH Duo devices may be mounted on a pole having a diameter of 1-
3.5 inches, utilizing the pivot mounting bracket. 
• 
Users and installers must be provided with antenna installation and transmitter 
operating conditions to satisfy RF exposure compliance. 
• The 
IAP 
MUST have an Ethernet connection to your wired network 
infrastructure. 
• 
Type A-Light Duty sites have impedance requirements of 25 ohms or less to 
ground whereas Type B- Light Industrial/Commercial sites have impedance 
requirements of less than 5 ohms to ground. MOTOMESH Duo 2.1 networks fall 
into the Type B-Light Industrial/Commercial category, and therefore must be 
treated with greater considerations as far as grounding requirements are 
concerned. 
Street Lights 
If the MOTOMESH Duo device is attached to a light arm and the attachment point meets the Type B 
grounding requirements, then the grounding stud attachment point is not required to be used.  Since Type 
B grounding requirements stipulate 5 ohms or less impedance to earth ground, things such as soil pH, 
type of grounding rods, size of conductors, and ground enhancing materials must be taken into account to 
achieve this goal. To verify the impedance requirements are met, a special Earth/Ground Resistance 
Tester (megohmmeter) may be necessary. 
 
MOTOMESH Duo devices should be mounted on the horizontal arm of the streetlight.  If this cannot be 
accomplished then a stand off bracket should be used to ensure adequate separation from the pole and 
additional grounding must be supplied. 
 
 
 
 
 
 
 
 
When using a photocell power cable you must verify that street light power is between 90-264 
VAC.   
Roof Mount 
When mounting on roof tops care must be taken to ensure devices are not significantly higher than 
surrounding devices.  Devices mounted at larger heights are more vulnerable to
 
lightning strikes.  They 
are also more susceptible to interference.  When mounting on the side of a building make sure a standoff 
bracket is used to provide adequate separation between the building surface and the MOTOMESH Duo 
device.  These mounts can be obtained through a variety of distributors. 
 
 
 
 
 
 
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